JBL LE8T-H Full Range Driver
The JBL LE8T-H is an 8-inch full-range driver capable of flat frequency response down to 30 Hz when used in the appropriate vented enclosure. Part of JBL's LE Series, it represents a unique design that can function as a single-driver solution for compact high-fidelity systems.
Specifications
| Type | 8" (200mm) Full Range Driver |
|---|---|
| Voice Coil Diameter | 1.5 inches (38mm) |
| Magnet | Alnico V |
| Nominal Impedance | 8 Ω |
| Power Handling | 40W continuous |
| Frequency Response | 30 Hz - 18 kHz (in recommended enclosure) |
| Sensitivity | 91 dB/W/m |
| Resonant Frequency (Fs) | ~28 Hz |
Design Features
- Full Range Capability: Single driver covers 30 Hz to 18 kHz
- Alnico V Magnet: Premium magnet for excellent transient response
- Treated Paper Cone: Natural, detailed sound reproduction
- Whizzer Cone: Integrated high-frequency extension
Applications
- Compact full-range speaker systems
- Single-driver high-fidelity speakers
- Retro and vintage-style audio systems
- Small room installations
Enclosure Design
The JBL Professional Enclosure Guide provides specific recommendations for the LE8T-H as a full-range driver:
| Application | Full range (flat to 30 Hz) |
|---|---|
| Chart Reference | #5 |
| Enclosure Volume | 3.4 cubic feet (96 liters) |
| Tuned Frequency | 32 Hz |
| Internal Dimensions | 22.1" H x 18.0" W x 15.6" D |
| Vent Area | 12.6 sq in (1x 4" duct) |
| Duct Length | 6.8 inches |
View the complete JBL Professional Enclosure Guide →
Historical Context
The LE8T-H represents JBL's expertise in full-range driver design from the Alnico era. Before the dominance of multi-way systems, full-range drivers like the LE8T-H were prized for their coherence and simplicity. The whizzer cone provided high-frequency extension without the complexity of a separate tweeter and crossover.
Related Drivers
- JBL LE8T - Standard version
- JBL D208 - Similar 8" full-range driver
- JBL D123 - 12" full-range alternative
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Documentation
- Lansing Heritage - Comprehensive JBL specifications, photos, and historical documents
- HiFi Engine - JBL manuals, service documents, and brochures
- Audio Karma JBL Forum - Community discussions and restoration guides
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